Chastity and orgasm denial discussion

My wife is ready to go along with this chastity arrangement I’ve put her in, and she appreciates that I’m more attentive during our time together, constantly thinking of how to make her happy. That’s a definite plus. Our current issue arises when I let her down; the corporal punishment she hands out is actually something I relish. Since she knows I enjoy it, she holds back from slapping, caning, spanking, or squeezing my balls.

I do like it, and I really value her inflicting pain on me as she explores that dominant/sadist side of herself. What strategies do you all use with your keyholder when the corporal punishments end up being a reward?